- Eklemek veya çıkarmak istediğiniz kriterleriniz için 'Dahil' / 'Hariç' seçeneğini kullanabilirsiniz. Sorgu satırları birbirine 'VE' bağlacı ile bağlıdır. - İptal tuşuna basarak normal aramaya dönebilirsiniz.
Objectives: The aims of the present study were (1) to determine ethnic differences in craniofacial
dimensions between Turkish and Saudi populations and (2) to identify possible gender differences
between males and females, based on a sample of untreated young adult subjects with
normal occlusions and well-balanced faces.
Methods: In total, 163 cephalometric radiographs were traced and evaluated to compare
untreated adults of Turkish and Saudi ethnicity. The Turkish group comprised 86 subjects; 45
females and 41 males. The Saudi group comprised 77 subjects; 39 females and 38 males. For statistical
evaluation, an independent-sa . . .mples t-test was performed.
Results: The Turkish sample had a more retrognathic maxilla and mandible (p< 0.001 for SNA
and SNB) and a more vertical direction of facial development (p< 0.001), with Turkish males having
more retrusive lips (p< 0.001). Distinctive ethnic differences were found in craniofacial structures
between Turkish and Saudi young adults.
Conclusions: It is appropriate to consider these aesthetic differences when a Turkish or a Saudi
patient is being evaluated during routine diagnosis and treatment planning
Objective: To test the hypotheses that (1) there is no difference in mandibular asymmetry between
the crossbite and normal side in a unilateral crossbite group (UCG) and between the right and left
sides in a bilateral crossbite group (BCG) and a control group (CG); and (2) there is no significant
difference in mandibular asymmetry among crossbite groups and control group.
Materials and Methods: The cone-beam computed tomography scans of three groups were
studied: (1) 15 patients (6 male, 9 female; mean age: 13.51 6 2.03 years) with unilateral posterior
crossbite; (2) 15 patients (8 male, 7 female; mean age: 13.36 6 2.12 years) . . . with bilateral posterior
crossbite; and (3) 15 patients (8 male, 7 female; mean age: 13.46 6 1.53 years) as a control group.
Fourteen parameters (eight linear, three surface, and three volumetric) were measured. Side
comparisons were analyzed with paired samples t-test, and for the intergroup comparison, analysis
of variance (ANOVA) and Tukey tests were used at the P , .05 level.
Results: According to side comparisons, no statistically significant difference was found in the
UCG. There were statistically significant differences in hemimandibular (P 5 .008) and ramal (P 5
.004) volumes for the BCG and in ramal height (P 5 .024) and body length (P 5 .021) for the CG.
Intergroup comparisons revealed significant differences in hemimandibular (P 5 .002) and body
volume (P , .001) for the normal side of the UCG and left sides of the other groups, and in angular
unit length (P 5 .025) and condylar width (P 5 .007) for the crossbite side of the UCG and the right
sides of the other groups.
Conclusions: Contrary to UCG, CG and BCG were found to have side-specific asymmetry.
Skeletal components of the mandible have significant asymmetry among the crossbite groups and
Objective –The aim of this study was to evaluate the effects of local resveratrol
(RSVL) administration on bone formation in response to expansion of the interpremaxillary
suture, in rats.
Material and Methods – Twenty 50- to 60-day-old male Wistar rats were separated
into two equal groups. Both groups were subjected to expansion, and 30 cN of force
was applied to the maxillary incisors with helical-spring. Twenty-four hours after
appliance placement, single-dose 10 lmol ⁄ kg RSVL in the dimethylsulfoxide
(DMSO) was injected to the inter-premaxillary suture in the experimental group. In
the control group, the same amount of . . .DMSO was injected to the suture of rats. Bone
formation in the suture was evaluated histomorphometrically. The area of new bone
(lm2), the perimeter around the new bone (lm), Feret s diameter (lm), the
percentage of new bone to non-ossified tissue (%), and the number of osteoblast
were measured and compared. Mann–Whitney U-test was used for statistical
evaluation at p < 0.05 level.
Results – Statistically significant differences were found between the groups for all
histomorphometric parameters. New bone area (p < 0.001), bone perimeter
(p < 0.001), Feret s diameter (p < 0.001), percentage of new bone (p < 0.001), and
the number of osteoblast (p < 0.001) were significantly larger in the experimental
group when compared with the control. Bone histomorphometric measurements
revealed that bone architecture in the RSVL treated rats was improved.
Conclusions – Local application of RSVL during the early stages to orthopedically
expanded inter-premaxillary suture area may stimulate bone formation and shorten
the retention period, in rats
Objective: To identify the effect of rapid maxillary expansion (RME) procedure on dynamic
measurement of natural head position (NHP).
Materials and Methods: The treatment group comprised 23 patients, 12 girls and 11 boys (mean
age: 10.1 6 1.1 years), and the control group comprised 15 subjects, 8 girls and 7 boys (mean age:
9.7 6 1.4 years). The test subjects underwent RME treatment using full cap acrylic device, and the
mean amount of expansion was 5.48 mm. An inclinometer and a portable data logger were used to
collect the NHP data. Intragroup changes were evaluated by using nonparametric Wilcoxon test,
and intergroup chang . . .es were analyzed with Mann-Whitney U-test. P values less than .05 were
considered statistically significant.
Results: The mean difference between initial and final NHP was 0.31u, and this difference was not
statistically significant. Also, there were no statistically significant differences between the RME
and control groups before and after treatment.
Conclusion: Treatment with the RME procedure showed no statistically significant effects on
dynamic measurement of NHP when compared with initial values or untreated control
To evaluate the shear bond strength (SBS), fracture mode, wire pull out (WPO) resistance and microleakage between low-shrinking and conventional composites used as a lingual retainer adhesive. Methods: A total of 120 human mandibular incisor teeth, extracted for periodontal reasons, were collected. Sixty of them were separated into two groups. To determine the SBS, either Transbond-LR (3M-Unitek) or Silorane (3M-Espe) was applied to the lingual surface of the teeth by packing the material into standard cylindrical plastic matrices (Ultradent) to simulate the lingual retainer bonding area. To test WPO resistance, 20 samples were prep . . .ared for each composite where the wire was embedded in the composite materialand cured. Then tensile stress was applied until failure of the composite occurred. The remaining 60 teeth were divided into two groups and multi-stranded 0.0215-inch diameter wire was bonded with the same composites. Microleakage was evaluated by the dye penetration method. Statistical analyses were performed by Wilcoxon, Pearson chi-square, and Mann-Whitney-U tests at p > 0.05 level. Results: The SBS and WPO results were not statistically significant between the two groups. Significant differences were found between the groups in terms of fracture mode (p > 0.001). Greater percentages of the fractures showed mix type failure (85%) for Silorane and adhesive (60%) for Transbond-LR. Microleakage values were lower in low-shrinking composite than the control and this difference was found to be statistically significant (p > 0.001). Conclusions: Low-shrinking composite produced sufficient SBS, WPO and micro-leakage values on the etched enamel surfaces, when used as a lingual retainer composite
This study handles the activities and the confiscation of the assets of Sarıcaoğlu Osman Aga, the ayan of Yenisehir district in Bursa. Osman Aga was a bandit initially. When Osman Aga got stronger due to the support of Kalyoncu Ali Aga, the ayan of Bilecik, he became the ayan of Yenişehir. Since he continued to behave like a bandit, he was sentenced to death several times. Nevertheless he always escaped from the punishment by means of Kalyoncu Ali’s protection. Upon he continued illegal activities persistenly he was sentenced to death once again in 1813. Even he escaped he was caught and executed finally. Then his inheritance was co . . .nfiscated. His total assets were estimated to be 600.000 kuruş.
Bu çalışmada, Yenişehir âyânı Sarıcaoğlu Osman Ağa'nın faaliyetleri ve müsâdere edilen varlıkları
incelenmiştir. Osman Ağa, önceleri bir eşkıya olarak bilinirken Bilecik âyânı Kalyoncu Ali Ağa'nın desteğiyle
güçlendi ve Yenişehir âyânı oldu. Ancak bir eşkıya gibi davranmaya devam etti. Bu nedenle birkaç kez ölüm
cezasına çarptırıldı. Fakat Kalyoncu Ali tarafından korunduğu için cezalandırılmaktan hep kurtuldu. Kanunsuz
eylemlerini sürdürdüğünden 1813'te bir kez daha idam cezası aldı, kaçmasına rağmen kısa süre sonra yakalanıp
öldürüldü. Ardından muhallefâtı müsâdere edildi. Osman Ağa'nın serveti 600.000 kuruş olarak tahmin edilmiştir
Günümüzde Avrupa ve Kuzey Amerika'da Safevi devletiyle ilgili araştırmalar oldukça popülerdir. Bu konudaki literatür günden güne artmaktadır. Burada öncelikle Avrupa ve
Kuzey Amerika'da Safevi çalışmalarının durumu değerlendirilmiştir. Ardından konuyla
ilgili 2000 yılından bu yana yapılan yayınları içeren bibliyografya verilmiştir.
Today, researchs on the Safavid state are very popular in Europea and North America. Literature on this subject is increasing day by day. First, we evaluated status of the Safavid studies in Europea and North America. Then bibliography containing publications in the last ten years are given. . . .
The human body consists of different systems which include the nervous system, the cardiovascular system, the musculoskeletal system, etc. Each system performs some kind of vital task and carries on many physiological processes. For example, the primary functions of the musculoskeletal system can be summarized as generating forces, producing motion, moving substance within the body, providing stabilization, and generating heat. Physiological processes are multifaceted fact and most of them manifest themselves as signals that reflect their nature and activities. These types of signals may be hormonal, physical or electrical. The gene . . .ral name of the electrical signals taken from the related organ or physiologic process with invasive or non-invasive methods is called Biomedical Signals. This signal is normally a function of time and is definable in terms of its amplitude, frequency and phase (Rangayyan, 2002). The electromyography (EMG) signal is a biomedical signal that detects the electrical potential generated by muscle cells when these cells contract, and also when the cells are at rest. Three types of muscle tissue can be identified. One of them is the skeletal muscle, and the others are the smooth muscle and the cardiac muscle. The EMG is applied to the study of skeletal muscle (Reaz et al., 2006). Skeletal muscles are comprised by nearly parallel cells and the muscle fibers which constitute the contractile structural units. Muscle fibers are activated by the central nervous system through electrical signals transmitted by motoneurons. A single motoneuron together with the muscle fibers that it contacts is called a motor unit which is the smallest functional subdivision of the neuromuscular system (Moritani, et al. 2004) The central nervous system controls the activation of motor units to optimize the interaction between our body and the surrounding environment. When the motor units are activated by the central nervous system, they produce an action potential trains of the active motor units add together to generate the interference EMG signal. Surface and needle electrodes have been used to detect EMG of muscles. Surface electrodes have been widely used to investigate neuromuscular functions because of their several advantages, for example, it is noninvasive, easy to adhere to the skin and to detect the total activities of the muscle and it was called Surface EMG (SEMG). Bu the real advantage of this technique is that it is more beneficial in studies, in which simultaneous movement of many muscles is examined in vast muscle groups. On the other hand, surface electrodes have disadvantages as well. Due to the broad area for receiving signals on respective muscl
Çocuk ve adolesanlarda konjenital olarak eksik veya travma nedeni ile kaybedilmiş daimi kesici dişlerden kaynaklanan problemlerin tedavisi için farklı yaklaşımlar mevcuttur. Bu olgu raporunda, alt ön keser dişleri konjenital olarak eksik olan hastaya uygulanan polietilen fiber ile güçlendirilmiş rezin tutuculu köprü sunumu amaçlanmıştır. On iki yaşındaki kız çoğuğu, bölümümüze diş eksikliğine bağlı estetik problem nedeni ile getirildi. Ağız içi ve radyolojik muayenesinden alt ön keser dişlerinin konjenital olarak eksik olduğu belirlendi. Komşu yan keser dişler bu bölgeye diastemalı olarak yerleştikleri için mevcut boşluk, köprü yapı . . .mına uygun değildi. Kısa süreli ortodontik tedavi ile köprü yapımı planlanan boşluk kısmen yeterli hale getirildi. Kompozit materyalden hazırlanan köprü gövdesi mevcut boşluğa, fiber ile güçlendirilmiş kompozit rezin materyal yardımıyla sabittendi. Hastanın 24 ay sonraki kontrolünde herhangi bir sorunun olmadığı görüldü. Minimal invaziv yaklaşımla uygulanan fiber ile güçlendirilmiş kompozit rezin köprülerin, gelişim dönemindeki hastalar için estetik, fonksiyon ve fonasyon kayıplarının düzeltilmesinde kullanılan ekonomik bir tedavi seçeneği olduğunu düşünmekteyiz.
Different treatment alternatives are considered for the rehabilitation of congenitally or traumatically missing permanent incisors in young children and adolescents. The purpose of this case report is to present an example of polyethylene fiber-reinforced composite resin bonded bridge. A 12-year-old girl, was referred to our clinic with complaints regarding aesthetics. The screening procedure revealed congenitally missing lower central incisors short term orthodontic treatment provided the necessary space for prothetic restoration was relatively opened to a built bridge. Fiber reinforced composite resin material was used to bond the composite bridge restoring the created space. Follow-up examination after 24 months, revealed stability with the absence of problems. Fiber reinforced composite resin bridge applications with minimal invasive approach may be an economical treatment alternative for rehabilitation of aesthetics, function and phonetics in young children and adolescents
Thanks to official duties Evliya Çelebi went to Iran twice in 1646-1647 and in
1655. First time he was sent as an envoy by Defterdarzade Mehmed Pasa to Kalb
Ali Khan, the governor of Tabriz. During his duty Evliya Çelebi traveled around
the north of the Safavid territories (Azerbaijan, Shirvan, Daghestan and Georgia)
and returned to Erzurum. In this study initially the route of his journey is
discussed. Then, information given by him about history and physical conditions
of the castles on his route were evaluated.
Evliya Çelebi, 1646-47'de ve 1655'de iki kez resmi görevlerle İran'a gitti. Bunlardan ilkinde Defterdarzâde Mehmed . . . Paşa tarafından Tebriz Valisi Kelb Ali Han'a elçi olarak gönderildi. Vazifesi süresince Safevi ülkesinin kuzey topraklarını (Azerbaycan, Şirvan, Dağıstan ve Gürcistan) dolaşıp, Erzurum'a döndü. Bu çalış- mada ilk olarak bu seyahatin güzergâhı ele alınmıştır. Sonra güzergâhı üzerinde bulunan kalelerin fiziksel durumuna ve tarihine dair verdiği bilgiler değerlendirilmiştir
İzmir Katip Çelebi Üniversitesi, akademisyen ve lisansüstü öğrencilerinin iç ve dış paydaşlarla birlikte ürettikleri bilimsel çalışmalarını, Akademik Açık Arşivi'nde dijital olarak yayınlayarak, ülke ve dünya genelinde bilim topluluğuna açık erişim sağlamaktadır.
Akademik Açık Arşivi'nde bulunan tüm kaynaklar, telif haklarına saygı gösterilerek ve açık erişim ilkeleri doğrultusunda yayınlanmaktadır.
İzmir Katip Çelebi Üniversitesi, bilimsel bilgiye erişimi kolaylaştırarak, araştırma sonuçlarını ve bilimsel yayınları geniş bir kitleye sunarak bilimsel gelişmelere katkıda bulunmayı amaçlamaktadır.
Giriş işlemi için kütüphane hesabı kullanıcı adı ve şifrenizi veya UBYS bilgilerinizi kullanarak işleminize devam edebilirsiniz.
6698 sayılı Kişisel Verilerin Korunması Kanunu kapsamında yükümlülüklerimiz ve çerez politikamız hakkında bilgi sahibi olmak için alttaki bağlantıyı kullanabilirsiniz.